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Adv Dent Res. 1998 Nov;12(2):27-31.

Safety and efficacy of sub-antimicrobial-dose doxycycline therapy in patients with adult periodontitis.

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  • 1Department of Periodontology, School of Dental Medicine, State University of New York at Buffalo 14214, USA.


The objectives of the studies presented here were to assess the safety and efficacy of the adjunctive administration of sub-antimicrobial-dose doxycycline (SDD) for the treatment of adult periodontitis and to confirm the optimal dosing regimen. The studies summarized included four double-blind, placebo-controlled, randomized clinical trials, conducted over a period of 9 to 12 months. Analysis of efficacy data demonstrated that adjunctive SDD treatment resulted in: (1) increases in clinical attachment levels; (2) decreases in probing pocket depths; and (3) reductions in bleeding on probing in patients with adult periodontitis. There were no significant adverse events or unwanted long-term antimicrobial effects associated with orally administered SDD. The results of these clinical trials indicate that the adjunctive use of SDD 20 mg BID is an effective and well-tolerated regimen which can significantly improve several indices of periodontal health.

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